These are the solvers used by BARON to solve the sub problems and both have to licensed properly. By default, GAMS/BARON uses CPLEX as the LP solver and MINOS as the NLP solver. If you want to change this, you must use the options LPSol and NLPSol to specify another LP or NLP solver. GAMS/BARON can be used without a local NLP solver by setting DoLocal = 0 and NumLoc = 0. Please check the BARON manual for details.

To use MINOS as default LP solver, create a solver option file baron.opt, and add the line: